<?php
$data['city_site_taibei'] = array (
  'sites' => 
  array (
    0 => '1',
    1 => '3',
    2 => '4',
    3 => '18',
  ),
  'py' => 
  array (
    'F' => 
    array (
      0 => '3',
    ),
    'J' => 
    array (
      0 => '18',
    ),
    'L' => 
    array (
      0 => '4',
    ),
    'M' => 
    array (
      0 => '1',
    ),
  ),
);

?>